Icon no longer animated?

On my fully compliant Windows 11 desktop, the animated "sweeping" icon that appears in the tray when CC is running has stopped sweeping. It just sits there. On my not-quite-compliant Windows 11 desktop, it still sweeps actively when CC is running. Both machines are running CC 5.90.9443.

Any idea why my icon on one desktop would be lifeless?

Both machines are running W11 Pro 21H2 ... 527.

It may just be faster on the compliant pc, if it's too fast the icon won't change